%0 Journal Article %T A Hardware Architecture For Reconfigurable Intelligent Surfaces with Minimal Active Elements for Explicit Channel Estimation %A Alexandropoulos, George C. %A Vlachos, Evangelos %A , %J ICASSP 2020 - 2020 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) %D 2020-05-01 %I IEEE %~ DeepDyve